Professional rust proofing gun designed to apply protective coatings such as cavity wax inside doors, beams, rocker panels, and other cavities. This gun allows for pressure to build up inside the tank assuring the coating will be atomized at the tip of the wand and provide total coverage of the rustproofing inside the cavity. All metal gun designed for industrial use by body shops, car dealers and rustproofing professionals. Also for the hobbyist and do-it-yourselfer. Equipped with a brass spray tip to spray directly out of the gun and comes with 5 ft wand with 2 spray attachments. Handheld 90 degree jet spray pattern nozzle and mist 180 degree spray pattern nozzle. Use to apply rustproofing coatings. Not recommended for application of undercoatings.